I leave on July 1st for a 7-8 week road trip across Canada and then back through the U.S. We'll hit 9 Canadian Provinces and at least 25 U.S. States before arriving back in southwestern Canada around August 24th. I have a general idea of what establishments that my wife and I will visit, but nothing is 100% with a road trip and some of the days we'll make it up as we go along.
Strong Possibilities (and in visiting order):
Drive across Canada until we pass the city of Winnipeg, and then head south:
Minnesota Zoo, Brookfield Zoo, Lincoln Park Zoo, Shedd Aquarium, (maybe the Toledo Zoo), Detroit Zoo, Toronto Zoo, Montreal Biodome, (maybe another zoo/aquarium around the North East of the U.S.), perhaps the Philadelphia Zoo, National Zoo in Washington D.C........then depending on which way we go: Cincinnati Zoo, Louisville Zoo, St. Louis Zoo, Denver Zoo, Oregon Zoo are all very realistic possibilities as we head back across the U.S. to our Canadian home. That is a rough outline of the trip!! We'll naturally see a few more attractions (haha): Niagara Falls, Toronto's CN Tower, Notre Dame in Montreal, the Citadel in Quebec City, etc, etc.